Validation of sea ice concentration - Asian sector
Bulletin date: 2023-01-19
Data source: OSI SAF N.H. sea ice concentration
Model vs. observations, sea ice class contingency tables
Date: 2023-01-13:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
23 |
200 |
2 |
12 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
0 |
11 |
2 |
0 |
0 |
0 |
| VODI |
0 |
57 |
1 |
8 |
13 |
0 |
0 |
0 |
| ODI |
0 |
38 |
3 |
8 |
14 |
11 |
0 |
0 |
| CDI |
0 |
41 |
2 |
23 |
16 |
63 |
17 |
0 |
| VCDI |
0 |
105 |
12 |
152 |
270 |
889 |
5512 |
24531 |
|
...date precedes bulletin
|
Date: 2023-01-15:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
29 |
177 |
1 |
3 |
0 |
0 |
0 |
0 |
| OW |
0 |
46 |
0 |
13 |
1 |
0 |
0 |
0 |
| VODI |
0 |
56 |
1 |
9 |
14 |
0 |
0 |
0 |
| ODI |
0 |
51 |
0 |
2 |
30 |
2 |
0 |
0 |
| CDI |
0 |
61 |
0 |
6 |
33 |
50 |
5 |
4 |
| VCDI |
0 |
186 |
15 |
133 |
270 |
882 |
5831 |
24171 |
|
...date precedes bulletin
|
Date: 2023-01-17:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
47 |
206 |
1 |
7 |
0 |
0 |
0 |
0 |
| OW |
0 |
52 |
2 |
16 |
2 |
0 |
0 |
0 |
| VODI |
0 |
59 |
0 |
8 |
28 |
0 |
0 |
0 |
| ODI |
0 |
58 |
0 |
0 |
42 |
2 |
0 |
0 |
| CDI |
0 |
71 |
0 |
3 |
41 |
62 |
4 |
5 |
| VCDI |
0 |
254 |
24 |
128 |
348 |
1373 |
5219 |
24020 |
|
...date precedes bulletin
|
Date: 2023-01-19:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94 |
162 |
2 |
2 |
0 |
0 |
0 |
0 |
| OW |
5 |
52 |
3 |
22 |
0 |
0 |
0 |
0 |
| VODI |
0 |
67 |
0 |
10 |
35 |
0 |
0 |
0 |
| ODI |
0 |
54 |
0 |
0 |
42 |
2 |
0 |
0 |
| CDI |
0 |
71 |
1 |
8 |
38 |
64 |
1 |
11 |
| VCDI |
0 |
260 |
20 |
117 |
411 |
1827 |
5810 |
22891 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
94 |
180 |
2 |
2 |
0 |
0 |
0 |
0 |
| OW |
5 |
54 |
3 |
17 |
0 |
0 |
0 |
0 |
| VODI |
0 |
65 |
0 |
13 |
16 |
0 |
0 |
0 |
| ODI |
0 |
59 |
0 |
2 |
47 |
1 |
0 |
0 |
| CDI |
0 |
63 |
1 |
10 |
44 |
50 |
1 |
11 |
| VCDI |
0 |
245 |
20 |
115 |
419 |
1842 |
5810 |
22891 |
|
Date: 2023-01-21:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
140 |
134 |
5 |
7 |
0 |
0 |
0 |
0 |
| OW |
13 |
52 |
0 |
23 |
0 |
0 |
0 |
0 |
| VODI |
1 |
77 |
0 |
22 |
52 |
0 |
0 |
0 |
| ODI |
0 |
57 |
0 |
27 |
49 |
4 |
0 |
0 |
| CDI |
0 |
87 |
1 |
46 |
82 |
61 |
5 |
0 |
| VCDI |
0 |
303 |
21 |
176 |
634 |
2267 |
6107 |
21629 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
140 |
147 |
3 |
6 |
0 |
0 |
0 |
0 |
| OW |
13 |
61 |
2 |
15 |
0 |
0 |
0 |
0 |
| VODI |
1 |
76 |
0 |
31 |
31 |
0 |
0 |
0 |
| ODI |
0 |
67 |
0 |
31 |
58 |
4 |
0 |
0 |
| CDI |
0 |
92 |
2 |
44 |
93 |
58 |
8 |
0 |
| VCDI |
0 |
267 |
20 |
174 |
635 |
2270 |
6104 |
21629 |
|
Date: 2023-01-23:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
145 |
279 |
5 |
6 |
0 |
0 |
0 |
0 |
| OW |
0 |
95 |
2 |
13 |
0 |
0 |
0 |
0 |
| VODI |
0 |
66 |
3 |
90 |
39 |
0 |
0 |
0 |
| ODI |
0 |
46 |
1 |
45 |
80 |
1 |
0 |
0 |
| CDI |
0 |
57 |
1 |
28 |
112 |
68 |
5 |
2 |
| VCDI |
0 |
226 |
17 |
155 |
361 |
2085 |
5966 |
22083 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
144 |
190 |
1 |
4 |
0 |
0 |
0 |
0 |
| OW |
1 |
80 |
6 |
5 |
0 |
0 |
0 |
0 |
| VODI |
0 |
73 |
1 |
38 |
20 |
0 |
0 |
0 |
| ODI |
0 |
59 |
1 |
47 |
48 |
23 |
0 |
0 |
| CDI |
0 |
82 |
1 |
53 |
83 |
79 |
21 |
9 |
| VCDI |
0 |
285 |
19 |
190 |
441 |
2052 |
5950 |
22076 |
|
Date: 2023-01-25:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
44 |
386 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
101 |
9 |
41 |
5 |
0 |
0 |
0 |
| VODI |
0 |
145 |
2 |
127 |
54 |
0 |
0 |
0 |
| ODI |
0 |
62 |
3 |
67 |
64 |
20 |
0 |
0 |
| CDI |
0 |
64 |
0 |
58 |
115 |
75 |
7 |
36 |
| VCDI |
0 |
254 |
26 |
196 |
759 |
2823 |
6050 |
20486 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
44 |
337 |
2 |
1 |
0 |
0 |
0 |
0 |
| OW |
0 |
69 |
4 |
5 |
1 |
0 |
0 |
0 |
| VODI |
0 |
113 |
6 |
62 |
55 |
7 |
0 |
0 |
| ODI |
0 |
80 |
1 |
99 |
53 |
46 |
0 |
0 |
| CDI |
0 |
103 |
3 |
103 |
88 |
92 |
29 |
45 |
| VCDI |
0 |
310 |
26 |
220 |
800 |
2773 |
6028 |
20477 |
|
Date: 2023-01-27:
| Best estimate |
Forecast |
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
50 |
337 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
72 |
5 |
15 |
3 |
0 |
0 |
0 |
| VODI |
0 |
99 |
4 |
139 |
52 |
1 |
0 |
0 |
| ODI |
0 |
107 |
2 |
67 |
55 |
46 |
0 |
0 |
| CDI |
0 |
66 |
3 |
44 |
75 |
170 |
68 |
22 |
| VCDI |
0 |
152 |
16 |
137 |
615 |
2353 |
7142 |
20164 |
|
|
observations |
|
Ice free |
Ice free
near MIZ |
OW |
VODI |
ODI |
CDI |
VCDI
near MIZ |
VCDI |
m
o
d
e
l |
Ice free |
50 |
234 |
1 |
0 |
0 |
0 |
0 |
0 |
| OW |
0 |
60 |
1 |
3 |
1 |
0 |
0 |
0 |
| VODI |
0 |
84 |
7 |
39 |
15 |
17 |
0 |
0 |
| ODI |
0 |
59 |
1 |
77 |
60 |
69 |
22 |
0 |
| CDI |
0 |
111 |
1 |
103 |
63 |
122 |
114 |
27 |
| VCDI |
0 |
285 |
20 |
180 |
661 |
2362 |
7074 |
20159 |
|
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